Severe 2011 ozone depletion assessed with 11 years of ozone, NO 2 , and OClO measurements at 80°N

• Published in: Geophysical Research Letters
• Main Authors: Adams, C., Strong, K., Zhao, X., Bassford, M. R., Chipperfield, M., Daffer, W. H., Drummond, J. R., Farahani, E., Feng, W., Fraser, A., Goutail, Florence, Manney, G. L., Mclinden, C. A., Pazmino, Andrea, Rex, M., Walker, K. A.
• Other Authors: Department of Physics Toronto, University of Toronto, RAND Europe Cambridge, School of Earth and Environment Leeds (SEE), University of Leeds, Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Department of Physics and Atmospheric Science Halifax, Dalhousie University Halifax, School of Geosciences Edinburgh, University of Edinburgh (Edin.), STRATO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), New Mexico Institute of Mining and Technology New Mexico Tech (NMT), Air Quality Research Division Toronto, Environment and Climate Change Canada (ECCC), Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI), Helmholtz-Gemeinschaft = Helmholtz Association, Department of Chemistry Waterloo, University of Waterloo Waterloo
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2012
• Subjects: UV-visible spectroscopy; Arctic ozone depletion; CANDAC; DOAS; PEARL; Polar vortex; [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]; Arctic; Canada; Eureka
• Online Access: https://hal.science/hal-00671665; https://hal.science/hal-00671665/document; https://hal.science/hal-00671665/file/2011GL050478.pdf; https://doi.org/10.1029/2011GL050478

International audience Unusually cold conditions in Arctic winter 2010/11 led to large stratospheric ozone loss. We investigate this with UV-visible measurements made at Eureka, Canada (80.05°N, 86.42°W) from 1999-2011. For 8-22 March 2011, OClO was enhanced, indicating chlorine activation above Eur...